Preheat oven at 200 C. Put the sausages , squash, peppers and onion in roasting tin. Mix the herbs with the olive oil and then drizzle on top of the vegetables and sausages. Mix with a wooden spoon to make sure that everything is coated with the oil mixture.

Roast for about 40-45 minutes until the sausages are cooked and the vegetables are tender and brown.